Civiora
Explore

Municipal profile

Coat of arms of Grandfontaine

Grandfontaine

Canton: Jura (JU)

Civiora Index

Derived from official data

38/100

Below the median

National rank: 1’842 / 2’110

Taxes20/100
Premiums18/100
Electricity65/100
Housing8/100
PT service87/100

Confidence level: high · v1.1.0 · Civiora Index computed from official public data. Proprietary, non-official index. Understand the index

Median altitude567 m
Area9.0 km²
Postcode2908
FSO no.6792
DistrictDistrict de Porrentruy
Tax burden14.1 %Single, CHF 80’000 · 2026 more than SwitzerlandSwiss median: 13.1 %
Electricity price25.8 ct./kWhH4 · 2027 less than SwitzerlandSwiss median: 26.9 ct./kWh
Health insurance premiums704 CHF/monthAdult · 2027 more than SwitzerlandSwiss median: 599 CHF
Population362−6.5 % over 5 years (2020–2025) less than SwitzerlandSwiss median: +4.4 %
Vacancy rate0.00 %01.06.2026 less than SwitzerlandSwiss median: 0.83 %
Public transport stops4No rail stop (bus/other)

Taxes: tax burden by scenario

Tax burden ranking →Official

On a salary of CHF 80’000 a year, a single person in Grandfontaine pays 14.1% of their gross income in tax, or about CHF 11’300 a year. That is CHF 820 more than in the median Swiss municipality.

GrandfontaineSwiss median
Single, CHF 80’000 approx. 11’300 CHF/year820 CHF/year more
14.1 %
13.1 %
Single, CHF 120’000 approx. 22’390 CHF/year1’690 CHF/year more
18.7 %
17.2 %
Married couple, CHF 120’000 approx. 15’670 CHF/year2’210 CHF/year more
13.1 %
11.2 %
Family, 2 children, CHF 150’000 approx. 19’000 CHF/year4’100 CHF/year more
12.7 %
9.9 %
Retiree, CHF 80’000 approx. 14’940 CHF/year1’960 CHF/year more
18.7 %
16.2 %

2026 tax burden in % of gross income (federal, cantonal and communal taxes; earned income, no wealth, no church tax). Calculation FTA, Swiss tax calculator.

Federal Tax Administration (FTA)Tax burden 2026: Swiss tax calculator (model cases)View source

Electricity

2027 tariff ranking →Official

A typical household (profile H4, 4’500 kWh a year) in Grandfontaine pays 25.79 ct. per kWh, or about CHF 1’160 a year. That is CHF 50 a year less than in the median Swiss municipality.

25.79 ct./kWh

less than SwitzerlandSwiss median: 26.91 ct./kWh

Tariff breakdown

Energy (the electricity itself) 7.97Grid (delivery to the meter) 11.91Levies and surcharge (public charges and levies) 5.91ct./kWh

Federal Electricity Commission (ElCom)Electricity tariffs 2027, profile H4, standard productView source

Health insurance premiums

2027 premium ranking →Derived from official data

An adult in Grandfontaine pays a median CHF 704 a month for basic health insurance, or about CHF 8’440 a year (CHF 300 deductible, accident cover included). That is CHF 104 a month more than the Swiss median (CHF 599).

704 CHF/month

more than SwitzerlandSwiss median: 599 CHF

Median monthly premium 2027, adult (26+), CHF 300 deductible, with accident, standard model: median of the 21 offers in premium region JU-0 (Civiora calculation on FOPH data).

Official FOPH average premiums 2027 (all deductibles and models)

Adult551.00 CHF/monthapprox. 6’610 CHF/year
19–25 years346.10 CHF/monthapprox. 4’150 CHF/year
Child134.80 CHF/monthapprox. 1’620 CHF/year

Federal Office of Public Health (FOPH)Compulsory health insurance premiums 2027 (priminfo)View source

Population and demographics

Official

Grandfontaine has 362 inhabitants at the end of 2025, 6.5% fewer than five years ago (Swiss median: +4.4%).

Population change 2010–2025

362 inhabitants

Density: 40 inhab./km² · 2025

−4.2 % vs previous year (2024–2025)

Age structure (2025)

0–19 years 23.2 %20–64 years 49.7 %65 and over 27.1 %

About 1 resident in 4 is under 20, and 1 in 4 is 65 or over. About 1 resident in 19 (5.2%) holds a foreign nationality.

Federal Statistical Office (FSO)STATPOP: permanent resident population (STAT-TAB), status 31.12.2025View source

Housing

Vacancy rate ranking →Official

On 1 June 2026, no vacant home was recorded in Grandfontaine (Swiss median: 0.83%). The higher this rate, the easier it is to find a home.

Vacancy rate 2016–2026

Vacant dwellings001.06.2026
Housing stock (2024)214

Federal Statistical Office (FSO)Vacant dwellings count, 1 June 2026View source

Federal Statistical Office (FSO)Buildings and dwellings statistics (GWS): housing stock 2024View source

Public transport

Derived from official data

Grandfontaine has 4 public transport stops. On an ordinary Tuesday, 144 departures are scheduled across all stops, 4 of them after 8 pm.

Public transport stops4No rail stop (bus/other)
Departures on a typical Tuesday144of which evening (from 8 pm): 4 (3 %)
Departures on a typical Sunday4833 % of the typical Tuesday
Public transport stops / 1’00011.05Swiss median: 3.33

Departures counted in the official 2026 timetable (GTFS) on typical days: Tuesday 08.09.2026 and Sunday 13.09.2026. Every call at every stop in the municipality counts as one departure. Civiora calculation.

opentransportdata.swiss (ATLAS, SBB on behalf of the Confederation)Public transport service points, status 04.08.2026View source

opentransportdata.swiss (official GTFS timetable)2026 timetable (GTFS, 01.08.2026 edition): typical daysView source

Territory and local economy

Official

Grandfontaine’s territory is 6.7% built-up, 64.7% farmland and 28.4% forest (survey 2004/2009).

Built-up 6.7 %Farmland 64.7 %Forest 28.4 %Other (water, rock…) 0.2 %
Jobs94reference year 2018
Establishments33reference year 2018

Federal Statistical Office (FSO)Regional portraits 2021: key figures of communesView source

Neighbouring municipalities

–Haute-Ajoie JU1’063Fahy JU328